Better handling of git ignore

Dotenv.php

@@ -3,6 +3,7 @@
 namespace LakeDrops\Component\Dotenv;
 
 use Composer\IO\IOInterface;
+use LakeDrops\Component\Composer\Utils;
 use Symfony\Component\Dotenv\Dotenv as SymfonyDotenv;
 
 /**
@@ -108,7 +109,7 @@ final class Dotenv {
     }
     file_put_contents('.env', $envContent);
     $this->load();
-    passthru(escapeshellcmd('git -c "user.email=dotenv@lakedrops.com" ignore .env'));
+    Utils::gitIgnore('.env');
   }
 
   /**

composer.json

@@ -25,6 +25,7 @@
     },
     "require": {
         "php": ">=5.6",
+        "lakedrops/composer-json-utils": "^1.4.1",
         "symfony/dotenv": "^3.3"
     },
     "require-dev": {